*{
  user-select: none;
}
*{
  margin: 0px;
  padding: 0px;
  font-family: pingfang SC,helvetica neue,arial,hiragino sans gb,microsoft yahei ui,microsoft yahei,simsun,sans-serif!important;
}
body{
  margin: 0px;
  padding: 0px;
}

.flex{
  display: flex;
}